"Foreclosures and Unemployment"
Bad mortgage loans played a role in touching off the banking panic and the recession. But of course people who lose their jobs thanks a recession and can’t find new ones are also likely to be unable to pay their mortgages. Hence the fairly tight link between unemployment and mortgage delinquency:
Of particular note here is the Florida/Nevada/Arizona troika that’s way up above the line where you seem to have had a disproportionate number of really crazy loans.